aggresive trait dont care about relationships, but some exceptions like incan, they are aggresive anciant classical time, but really nice friendly later on.
and ye, everyone hates isabella, why would u want to share a religion with this wench? especialy a religion she founded.
same goes for saladin, i was free religion, but some how to get him pleased to me, and he will still back stab me.
i had my game where i was free religion, isabella founds buddism and saladin adopted it. i was pleased with saladin by bribing him with lots free resources. about 4 free resources.(im going diplomatic victory)
he then suddenly declare war, razed 1 of my city.
then isabella declared war with me too, but never gets a chance to land some troops on my continent, i had 2 destoryer and 1 submarine patroling.
other than the religious aggression
ghengis khan - ask tributes and help alot, then gets furious, then war
montezuma - willingness to march jaguars from other side of the world to my territory only to found out they are now obsolute
alexander - behaves like saladin, he can be really nice to u, then stab u in the back. he will attack anyone who have less military unit than him, and will attack again as soon as peace treaty expires
none aggressive- aggressive leaders
kublai khan - usually pick smaller civs early on, but can be trust worthy later on.
tokugawa - usually pick smaller civs early on, then lacks tech to do any harm later on
napoleon - mix between kublai and tokugawa
huayna - same as napolean
trust worthy friends
ghandi
asoka - but religious
bismarck - very nice
woshingtong
roosevelt
Hatshepsut
Victoria - not Elizabeth
Mansa Musa - trustworthy but really competitive in techs, best to kill him early, and never vote for me in UN